A rubber joint torsion and deflection test device and test method

Abstract

The invention belongs to the technical field of rubber joint test devices, and specifically relates to a rubber joint torsion and deflection test device and a test method. The torsion test device includes a base I, a pressure sleeve I, a force arm I and a pressure rod I. For the load application device, the rubber joint jacket is put into the pressure sleeve I, the two ends of the joint mandrel of the rubber joint are respectively fixed on two fixed vertical plates, and the bottom plate of the base I is fixed on the testing machine table; the structure of the deflection test device is similar. Test method, torsion or deflection angle requirements and force arm length to calculate the vertical displacement of the press head; load the press, record the vertical displacement and load of the press head; calculate the torsional or deflection stiffness value. Beneficial effects of the present invention: the torsion and deflection stiffness values ​​of rubber joints can be accurately detected, which is of positive significance to the quality control of rubber joint products; the problem of affecting the running quality of locomotives due to the deflection stiffness and torsional stiffness of rubber joints not meeting the design requirements is avoided question.

Description

technical field [0001] The invention belongs to the technical field of rubber joint test devices, and in particular relates to a rubber joint torsion and deflection test device and a test method. Background technique [0002] Rubber joints (such as figure 1 , figure 2 (shown) is a rubber elastic element widely used in railway locomotive bogie axle box tie rods, motor suspenders and other devices, and has the functions of load bearing and force transmission. The rubber joints realize the relative displacement between the connecting parts through radial, axial, torsional and deflection deformations. The torsional stiffness and deflection stiffness of the rubber joints of the axle box tie rods affect the dynamic performance of the locomotive. AC drive electric locomotives have design requirements for the torsional stiffness and deflection stiffness of the rubber joints of the bogie. However, since the torsional stiffness and deflection stiffness tests of the rubber joints ar...

AI Technical Summary

Problems solved by technology

AC drive electric locomotives have design requirements for the torsional stiffness and deflection stiffness of the rubber joints of the bogie. However, since the torsional stiffness and deflection stiffness tests of the rubber joints are not easy to implement on the test device, these two stiffness tests can only be used on locomotives at present. When carrying out type tests, specific values ​​cannot be detected, which is not conducive to the structural design and quality control of rubber joints, and also has a negative impact on the stability of railway locomotives.

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